CN111296121A - Method for purifying urban polluted river - Google Patents
Method for purifying urban polluted river Download PDFInfo
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- CN111296121A CN111296121A CN202010199047.0A CN202010199047A CN111296121A CN 111296121 A CN111296121 A CN 111296121A CN 202010199047 A CN202010199047 A CN 202010199047A CN 111296121 A CN111296121 A CN 111296121A
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/027—Pots connected in horizontal rows
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/40—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure
- A01G24/44—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Abstract
The invention discloses a method for purifying urban polluted rivers, and belongs to the technical field of water ecological restoration. According to the invention, the emerged plant-submerged plant purification system with the strip-shaped distribution on the two sides of the river is constructed by arranging the submerged plant floating beds and the floating plant floating beds at intervals, so that the emerged plant ecological floating bed can grow well, the submerged plant ecological floating bed can grow well, the emerged plant floating bed becomes a powerful support system with the good operation of the submerged plant floating bed, the submerged plant floating bed can better purify a water body, and the submerged plant floating bed supplement each other to purify V-class water into IV-class water. Through adopting evergreen emergent aquatic plants and evergreen submerged plants, the continuous and stable purification effect of the floating bed in four seasons can be ensured, and the environment can be better beautified.
Description
Technical Field
The invention relates to a method for purifying urban polluted rivers, and belongs to the technical field of water body ecological restoration.
Background
At present, natural water bodies on the ground surface of lakes, rivers, ponds and the like in China receive more point source and surface source pollution, the pollution is more serious, and the water body eutrophication phenomenon is easy to generate. Common methods for treating surface water pollution and eutrophication include water level in-situ ecological remediation techniques. The submerged plant is a symbol of a healthy water ecosystem, and the submerged plant recovery is an important component of the water body in-situ restoration technology. The submerged plant can better absorb nitrogen and phosphorus nutrient substances in the water body, the submerged plant can improve the dissolved oxygen in the water body through the oxygen secretion effect of the root system, the roots, stems and leaves of the submerged plant can be used as a good habitat for attached microorganisms, biological nitrogen and phosphorus removal is promoted, the submerged plant provides a richer ecological site, the growth and propagation of various food chains in the water are promoted, and the submerged plant can also release allelochemicals to the water to effectively inhibit the growth of planktonic algae and improve the transparency of the water body. In summary, submerged plants are an important support system for the health of water. However, one of the basic requirements for restoring submerged plants is that the transparency of the water body is high enough, the transparency of the water body is generally low in polluted surface water bodies and eutrophic water bodies, the underwater light field cannot meet the growth requirement of the submerged plants, the photosynthesis of the submerged plants is hindered, and the submerged plants are difficult to directly survive, grow and reproduce. The submerged plants can be used as a part of a support system of the aquatic ecosystem, but the submerged plants are only relied on, so that the water body is not purified well, and a good aquatic ecosystem is not recovered.
Disclosure of Invention
In order to solve the problems, the invention provides a method for constructing an emergent aquatic plant floating bed-submerged plant floating bed purification system which is used for purifying urban polluted rivers and is distributed in a strip-shaped manner at intervals on two banks, and aims to improve the water quality purification effect of the urban polluted rivers and restore the ecological system of healthy water of the rivers. The system can enable the emergent aquatic plant ecological floating bed to grow well, can also enable the submerged plant ecological floating bed to grow well, and the emergent aquatic plant floating bed becomes a powerful supporting system for the submerged plant floating bed to operate well, and the submerged plant floating bed can better purify water, and the emergent aquatic plant floating bed and the submerged plant floating bed supplement each other to purify V-class water into IV-class water.
A first object of the present invention is to provide an ecological restoration system, which comprises a submerged plant floating bed and an emergent plant floating bed; the submerged plant floating bed comprises four steel pipes, a floating ball, a submerged plant net cage and an anchor, wherein the floating ball is connected with the submerged plant net cage, the four steel pipes are fixed in bottom mud of a river and positioned around the submerged plant net cage, and the anchor is positioned below the submerged plant net cage; the submerged plant net cage comprises a rigid net cage, a fishing net bag, a vegetation planting blanket and a flexible fishing net covering the vegetation planting blanket, the rigid net cage surrounds the vegetation planting blanket and the flexible fishing net, the peripheries of the vegetation planting blanket and the flexible fishing net are fixed on the rigid net cage, the fishing net bag is hung at the bottom of the rigid net cage, and the peripheral edge of the fishing net bag is connected with the rigid net cage; four corners of the upper part and four corners of the lower part of the submerged plant net cage are respectively connected with a rubber ring, and the two rubber rings on the same vertical side of the submerged plant net cage are sleeved on the same steel pipe; the emergent aquatic plant floating bed comprises a floating bed frame, a fishing net and filler; the emergent aquatic plant floating bed frame is rectangular and is formed by connecting a plurality of polyethylene plastic pipes end to end; the fishing net is arranged below the floating bed frame, the fishing net is fixed around the floating bed frame, the filler is arranged between the fishing net and the floating bed frame, and the particle size of the filler is larger than the aperture of the fishing net.
In one embodiment of the invention, the vegetation planting blanket in the submerged plant floating bed is an environment-friendly vegetation planting blanket and is made of coconut fiber, the coconut fiber has good scouring resistance effect, fine fiber, small gaps and good heat preservation, and the thickness of the vegetation planting blanket is 10-20 cm.
In one embodiment of the invention, the diameter of the mesh of the flexible fishing net in the submerged plant floating bed is (2-5) cm.
In one embodiment of the invention, the rubber ring in the submerged plant floating bed is a sun-proof rubber ring.
In one embodiment of the invention, the floating ball in the submerged plant floating bed is an ellipsoidal sun-proof floating ball, the major axis is 100-150cm, and the minor axis is 30-50cm, so that a heavy submerged plant net cage can be effectively floated; and is wrapped by a fishing net which is extended from the two sides of the submerged plant net cage.
In one embodiment of the invention, the anchor in the floating bed of the submerged plant is an object with a weight which can enable the submerged plant net cage to be immersed in water to a depth of 60-100 cm.
In one embodiment of the invention, the anchor in the submerged plant floating bed is preferably a plastic bottle filled with sand, the weight of the plastic bottle can be controlled by changing the size of the plastic bottle and the amount of the sand, the operation is convenient and easy, the depth of the floating bed immersed in water can be ensured by adjusting the weight of the anchor according to the weight of the submerged plant, the floating bed is generally immersed in water by about 60-100cm, and the anchor of the device enables the submerged plant net cage to be self-adjusted up and down along with the rise or fall of the water level without light sensation, manual adjustment or additional adjustment of an electric device.
In one embodiment of the invention, the steel pipe in the submerged plant floating bed is 60-100cm higher than the water surface, and the specific height can be determined according to the highest water level of the river.
In one embodiment of the invention, the height of the mesh box of the submerged plant in the submerged plant floating bed is 150cm, and the width is 180cm, so that the submerged plant can still survive well in the river with lower transparency and has a certain growth and propagation space; the side length of the mesh of the rigid net cage is 2-5cm, so that snails can enter the rigid net cage, and meanwhile, large fishes are prevented from swallowing submerged plant seedlings, and the submerged plants are helped to be rapidly propagated and grown. When the submerged plant grows and breeds rapidly, the snails in the net cage grow gradually, can scrape biofilms on stems and leaves of the submerged plant and can promote the growth of the submerged plant.
In one embodiment of the invention, the side length of the mesh of the fishing net bag in the submerged plant floating bed is 0.2-0.5 cm, so that the submerged plant root system can be protected from growing and breeding, fishes can be prevented from eating, the formation of the interlaced and wound huge aquatic plant root system is facilitated, and the water body purification is very facilitated.
In one embodiment of the present invention, the filler in the emergent aquatic plant floating bed is floatable ceramsite.
In one embodiment of the invention, carbon fiber ecological grass is also hung below a floating bed frame in the emergent aquatic plant floating bed and is fixed on the floating bed frame by adopting a PVC (polyvinyl chloride) binding belt.
In one embodiment of the invention, a small aeration device is further arranged in the submerged plant floating bed and the emergent plant floating bed.
The second purpose of the invention is to provide a method for purifying urban polluted rivers, which adopts the ecological restoration system to purify the urban polluted rivers, and the method specifically comprises the following steps: arranging submerged plant floating beds and emergent plant floating beds at two sides of the urban polluted river at intervals; the width of each side submerged plant floating bed and emergent plant floating bed approximately occupies the width of 1/6 river surface, and 2/3 water surface is left between the two side floating beds for boat to carry, and river flood discharge is facilitated.
In an embodiment of the present invention, the vegetation planting blanket of the submerged plant floating bed may be planted with submerged plants, and the submerged plants in the submerged plants are preferably elodea aegypti, which is a pollution-resistant evergreen submerged plant, and has an extremely strong adaptability, so that the submerged plants can better purify polluted water bodies, prevent water body eutrophication, and create a good water quality environment. Meanwhile, the waterweed is rich in nutrition and is an excellent food for fishes.
In one embodiment of the invention, the emergent aquatic plant floating bed can be planted with evergreen aquatic plants, preferably evergreen cress seeds or water spinach seeds. The evergreen cress can be evergreen at all seasons, the root system can better absorb nutrient substances in water, the root system is developed, the length of the root system can reach more than 20cm, the flourishing root system of the cress can be intertwined with each other to form thick spongy root hairs, and the water purification is very facilitated.
The third purpose of the invention is to provide the application of the ecological restoration system in purifying river water quality.
The invention has the beneficial effects that:
according to the invention, the emerged plant-submerged plant purification system with the strip-shaped distribution on the two sides of the river is constructed by arranging the submerged plant floating beds and the floating plant floating beds at intervals, so that the emerged plant ecological floating bed can grow well, the submerged plant ecological floating bed can grow well, the emerged plant floating bed becomes a powerful support system with the good operation of the submerged plant floating bed, the submerged plant floating bed can better purify a water body, and the submerged plant floating bed supplement each other to purify V-class water into IV-class water. Through adopting evergreen emergent aquatic plants and evergreen submerged plants, the continuous and stable purification effect of the floating bed in four seasons can be ensured, and the environment can be better beautified.
The emergent aquatic plant-submerged plant purification system constructed by the invention is distributed on two sides of the river channel, is convenient to maintain and manage, can ensure river navigation, better lightens the flood control pressure of the river, can also provide enough protection for the growth of submerged plants, and better recovers a healthy water ecological environment.
Drawings
Fig. 1 is a specific distribution diagram of the ecological restoration system in a river channel.
FIG. 2 is a schematic structural view of the floating bed of submerged plants according to the present invention;
FIG. 3 is a sectional view of the net cage for submerged plants taken along the A-A section; wherein, 1 is an anchor, 2 is a steel pipe, 3 is a rigid net cage, 4 is a floating ball, 5 is a fishing net bag, 6 is a vegetation planting blanket, and 7 is a flexible fishing net;
fig. 4 is a schematic structural view of the emergent aquatic plant floating bed of the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of better illustrating the invention and is not intended to limit the invention thereto.
Example 1: ecological restoration system
An ecological remediation system comprises a submerged plant floating bed and an emergent plant floating bed.
As shown in fig. 2 and 3, the submerged plant floating bed comprises four steel pipes 2, a floating ball 4, a submerged plant net cage and an anchor 1, wherein the floating ball 4 is connected with the submerged plant net cage, the floating ball 4 is a rugby-shaped sunscreen floating ball and is wrapped by a fishing net, and the fishing net is a fishing net extending from two sides of the submerged plant net cage; the four steel pipes 2 are fixed in the river sediment and positioned around the submerged plant net cage, and the anchor 1 is positioned below the submerged plant net cage; the submerged plant net cage comprises a rigid net cage 3, a fishing net bag 5, a vegetation planting blanket 6 and a flexible fishing net 7 covering the vegetation planting blanket 6, wherein the vegetation planting blanket 6 and the flexible fishing net 7 are arranged in the rigid net cage 3, and the edges of the vegetation planting blanket and the inner side wall of the rigid net cage 3 are fixed; the edge of the opening of the fishing net bag 5 is connected with the rigid net cage 3, so that the fishing net bag 5 is hung at the bottom of the rigid net cage 3; four corners of the upper part and four corners of the lower part of the submerged plant net cage are respectively connected with a sun-proof rubber ring, and the two rubber rings on the same vertical side of the submerged plant net cage are sleeved on the same steel pipe. The height of the submerged plant net cage is 120cm, and the width of the submerged plant net cage is 150 cm. The submerged plant floating bed can self-regulate the depth.
Preferably, the vegetation planting blanket is an environment-friendly vegetation planting blanket and is made of coconut fiber, the coconut fiber is good in scouring resistance effect, fine in fiber, small in gap and good in heat preservation, and the thickness of the vegetation planting blanket is 15 cm.
Preferably, the aperture of the flexible fishing net mesh is 3cm × 3 cm.
Preferably, the long ellipsoidal sunscreen floating ball has a long axis of 150cm and a short axis of 50 cm.
Preferably, the anchor is an object with a certain weight, and the weight can ensure that the submerged plant net cage is immersed into water to a depth of 60-100 cm; the anchor is preferably a plastic bottle filled with sand, the weight of the plastic bottle can be controlled by changing the size of the plastic bottle and the amount of the sand, the operation is convenient and easy, the weight of the submerged plant can be adjusted according to the weight of the submerged plant, the depth of the floating bed immersed in water is guaranteed, the floating bed is generally guaranteed to be immersed in water by about 60-100cm, the anchor of the device enables the submerged plant net cage to be adjusted up and down along with the rising or falling of the water level, and the device does not need light sensing, manual adjustment or additional electric device adjustment.
Preferably, the steel pipe is 60-100cm higher than the water surface, and the specific height can be determined according to the highest water level of the river.
Preferably, the side length of the meshes of the rigid net cage is 3cm (the rigid net body is made of 304 stainless steel wires, and the mesh size of the meshes of the net is 3cm multiplied by 3cm), so that snails can enter the rigid net cage, and meanwhile, large fishes are prevented from swallowing seedlings of submerged plants, and the rapid propagation and growth of the submerged plants are facilitated. When the submerged plant grows and breeds rapidly, the snails in the net cage grow gradually, can scrape biofilms on stems and leaves of the submerged plant and can promote the growth of the submerged plant.
Preferably, the aperture of the mesh of the fishing net bag is 0.5cm multiplied by 0.5cm, the submerged plant root system can be protected from growing and breeding, fishes can be prevented from eating, the mutually interlaced and wound huge aquatic plant root system is formed, and the water body purification is very facilitated.
Preferably, the submerged plant is waterweed, the waterweed is a pollution-resistant evergreen submerged plant, the waterweed has extremely strong adaptability, can better purify a polluted water body, prevent water body eutrophication, and can also create a good water quality environment. Meanwhile, the waterweed is rich in nutrition and is an excellent food for fishes.
As shown in fig. 4, the emergent aquatic plant floating bed comprises a floating bed frame, a fishing net and filler. The minimum unit of the floating bed frame is rectangular and is formed by connecting a plurality of polyethylene plastic pipes end to end, and according to the shape and the area of the installation space where the floating bed is arranged, the floating bed frame body comprises a rectangle of 4 polyethylene plastic pipes, or a 'ri' shape of 7 polyethylene plastic pipes, or a 'tian' shape of 12 polyethylene plastic pipes; the joints can be connected by detachable pipe joints, and comprise a two-way joint, a three-way joint and a four-way joint. A fishing net is arranged below the emergent aquatic plant floating bed frame, and the fishing net is fixed on the emergent aquatic plant floating bed frame by a plastic binding belt; the fishing net and the floating bed frame contain floatable high-quality light ceramsite; the grain diameter of the ceramsite is larger than the aperture of the fishing net.
And carbon fiber ecological grass is also hung below the emergent aquatic plant floating bed frame, is 60cm long and is fixed on the floating bed frame by adopting a PVC (polyvinyl chloride) binding belt, and is arranged every 80 cm.
The submerged plant floating bed and the emergent plant floating bed are also internally provided with small aeration devices, and 1 floating bed can be provided with one small aeration device.
Example 2: method for ecological restoration of urban polluted river
A river channel is an urban polluted river, the width of the river channel is 13-17 m, and the purification length of the river channel is 500 m.
As shown in fig. 1, the fishing ropes in the river are fixed by using wooden piles at both sides of the urban polluted river, and the emergent aquatic plant floating bed and the submerged plant floating bed in example 1 are sequentially fixed on the fishing ropes at a certain interval. The submerged plant floating beds and emergent plant floating beds on each side are arranged alternately and sequentially. The width of each side submerged plant floating bed and emergent plant floating bed approximately occupies the width of 1/6 river surface, and 2/3 water surface is left between the two side floating beds for boat to carry, and river flood discharge is facilitated.
In the submerged plant floating bed, pollution-resistant evergreen submerged plant waterweed can be planted. The waterweed has strong adaptability, can better purify polluted water, prevent water eutrophication and also can create good water quality environment. Meanwhile, the waterweed is rich in nutrition and is an excellent food for fishes. The small fishes and shrimps entering the net cage can eat part of the waterweed, thereby promoting the metabolism, the propagation and the growth of the waterweed. In spring, small balls of mud balls can be put on the roots and stems of the waterweed seedlings and directly plugged into the coir fibers of the fishing net covered in the net cage, and the seedlings occupy 1/5 of the volume of the net cage. When the net cages are full of the elodea nuttallii in late spring and early summer, partial elodea nuttallii can be harvested, the volume of the elodea nuttallii 1/5 is kept, so that the elodea nuttallii can grow and propagate continuously, the water body is further purified, and a healthy ecological system is constructed. When the waterweeds grows over the whole ecological floating bed, the waterweeds can be harvested, and can be harvested for multiple times in one year.
Evergreen aquatic plants can be planted in the emergent aquatic plant ecological floating bed. And (3) sowing evergreen cress seeds or water spinach seeds on the floating frame. Uniformly sowing water spinach seeds in summer and uniformly sowing evergreen cress seeds in winter. Harvesting water spinach in late autumn and early winter in 10 months, and planting evergreen cress. Harvesting cress at the bottom of 3 months and at the beginning of 4 months, and sowing and planting water spinach. The evergreen cress can be evergreen at all seasons, the root system can better absorb nutrient substances in water, the root system is developed, the length of the root system can reach more than 20cm, the flourishing root system of the cress can be intertwined with each other to form thick spongy root hairs, and the water purification is very facilitated. When the cress grows to about 50-60 cm, the cress can be harvested, and the cress can be harvested about 5 times in a year.
The river water quality is changed from V-type water to IV-type water and is maintained for a long time. The aquatic vegetation coverage rate reaches 30%, and the ecological system is well restored.
Comparative example 1:
referring to the example 2, only the floating plant floating bed is arranged, and the water quality of the river is unchanged in class V water under the other conditions in the same way as the example 2.
Comparative example 2:
referring to the example 2, only the submerged plant floating bed is arranged, the water quality of the river is unchanged in class V water and the phenomenon of death of part of plants occurs under the same other conditions as the example 2.
Table 1 shows the water quality of the river for different treatments
| Initial state | Floating plant floating bed | Submerged plant floating bed | Floating plant and submerged plant | Floating plant, submerged plant, carbon fiber and aeration |
| Class V water | Class V water | Partial death, class V water | Class IV water | Class IV water, short term achievement, long term stable maintenance |
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An ecological restoration system is characterized in that the system comprises a submerged plant floating bed and an emergent plant floating bed; the submerged plant floating bed comprises four steel pipes, a floating ball, a submerged plant net cage and an anchor, wherein the floating ball is connected with the submerged plant net cage, the four steel pipes are fixed in bottom mud of a river and positioned around the submerged plant net cage, and the anchor is positioned below the submerged plant net cage; the submerged plant net cage comprises a rigid net cage, a fishing net bag, a vegetation planting blanket and a flexible fishing net covering the vegetation planting blanket, the rigid net cage surrounds the vegetation planting blanket and the flexible fishing net, the peripheries of the vegetation planting blanket and the flexible fishing net are fixed on the rigid net cage, the fishing net bag is hung at the bottom of the rigid net cage, and the peripheral edge of the fishing net bag is connected with the rigid net cage; four corners of the upper part and four corners of the lower part of the submerged plant net cage are respectively connected with a rubber ring, and the two rubber rings on the same vertical side of the submerged plant net cage are sleeved on the same steel pipe; the emergent aquatic plant floating bed comprises a floating bed frame, a fishing net and filler; the emergent aquatic plant floating bed frame is rectangular and is formed by connecting a plurality of polyethylene plastic pipes end to end; the fishing net is arranged below the floating bed frame, the fishing net is fixed around the floating bed frame, the filler is arranged between the fishing net and the floating bed frame, and the particle size of the filler is larger than the aperture of the fishing net.
2. The ecological restoration system according to claim 1, wherein the vegetation planting blanket is made of coir fiber and has a thickness of 10-20 cm.
3. The ecological restoration system according to claim 1, wherein the mesh diameter of the flexible fishing net in the submerged plant floating bed is (2-5) cm; the height of the submerged plant net cage is 150cm and the width is 180 cm; the side length of the meshes of the rigid net cage is 2-5 cm; the side length of the meshes of the fishing net bag is 0.2-0.5 cm.
4. The ecological restoration system according to claim 1, wherein the floating ball in the floating bed of submerged plant is an ellipsoidal sunscreen floating ball, the major axis is 100-150cm, and the minor axis is 30-50 cm.
5. The ecological restoration system according to claim 1, wherein the anchors in the floating bed of submerged plants are objects with a weight capable of making the cage of submerged plants submerged at a depth of 60-100 cm.
6. The ecological restoration system according to claim 1, wherein carbon fiber ecological grass is further hung below the floating bed frame in the emergent aquatic plant floating bed.
7. The ecological restoration system according to claim 1, wherein aeration devices are further arranged in the submerged plant floating bed and the emergent plant floating bed.
8. Use of the ecological restoration system according to any one of claims 1 to 7 for purifying river water.
9. A method for purifying a city polluted river, characterized in that the city polluted river is purified by using the ecological restoration system as claimed in any one of claims 1 to 7; the method comprises the steps of laying submerged plant floating beds and emergent plant floating beds at intervals on two sides of the urban polluted river; the width of the submerged plant floating bed and the emerging plant floating bed on each side accounts for 1/6-1/4 of the river surface.
10. The method for purifying a city polluted river according to claim 9, wherein the submerged plants are planted in a submerged plant floating bed; planting evergreen aquatic plants on the emergent aquatic plant floating bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010199047.0A CN111296121A (en) | 2020-03-20 | 2020-03-20 | Method for purifying urban polluted river |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112005770A (en) * | 2020-09-09 | 2020-12-01 | 广州和源生态科技发展股份有限公司 | Torrent type river submerged plant solid planting device and solid planting method |
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| CN205472958U (en) * | 2016-01-27 | 2016-08-17 | 上海园林绿化建设有限公司 | Ecological bed in river course based on short nothing flower eel grass |
| CN106396119A (en) * | 2016-12-02 | 2017-02-15 | 北京智耘生物科技有限公司 | Equipment for anchored ecological floating island with submerged plant |
| CN208166680U (en) * | 2018-03-21 | 2018-11-30 | 乾坤环保股份有限公司 | Suitable for the combined biological floating bed of river reparation |
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| CN102674556A (en) * | 2012-05-24 | 2012-09-19 | 河海大学 | Composite ecological floating bed for providing biotope |
| CN205472954U (en) * | 2016-01-11 | 2016-08-17 | 天津大学 | Three -dimensional type floats bed - mattress combination formula river water purification installation |
| CN205472958U (en) * | 2016-01-27 | 2016-08-17 | 上海园林绿化建设有限公司 | Ecological bed in river course based on short nothing flower eel grass |
| CN106396119A (en) * | 2016-12-02 | 2017-02-15 | 北京智耘生物科技有限公司 | Equipment for anchored ecological floating island with submerged plant |
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| CN112005770A (en) * | 2020-09-09 | 2020-12-01 | 广州和源生态科技发展股份有限公司 | Torrent type river submerged plant solid planting device and solid planting method |
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